It’s easy to ignore all those pesky little weeds in the darker winter months but as the days get longer it gets harder to ignore. There’s no quick fix for this, just good old elbow grease. Make sure you have the right tools for the job and a something soft to kneel on. Try to get the whole root out if you can or you could choose to use a chemical weed killer.
Before you reach for the jet washer make sure you have swept the area well first, this will help prevent sending any loose stones flying.
If there are any oil stains it’s worth adding an appropriate cleaner to the area, your local hardware store should have a selection available.